Army Spc. Thomas Wilson, for example, of the 278th Regimental Combat Team that is comprised mainly of citizen soldiers of the Tennessee Army National Guard, asked Rumsfeld in a question-and-answer session why vehicle armor is still in short supply, nearly two years after the start of the war that ousted Iraqi President Saddam Hussein. `Why do we soldiers have to dig through local landfills for pieces of scrap metal and compromised ballistic glass to uparmor our vehicles?'' Wilson asked. A big cheer arose from the approximately 2,300 soldiers in the cavernous hangar who assembled to see and hear the secretary of defense.